Coating weight control — verified GSM on every roll of heavy duty PVC coated tarpaulin, backed by 100% pre-shipment inspection and test documentation matching your site specification.
Technical Specifications
| Parameter | Value |
|---|---|
| Product Type | PVC Coated Tarpaulin |
| Material | PVC + High-strength polyester mesh fabric |
| Weight (GSM) | 350gsm, 420gsm, 500gsm, 550gsm, 600gsm, 750gsm |
| Total Thickness | 0.32mm, 0.35mm, 0.4mm, 0.45mm, 0.5mm, 0.65mm |
| Roll Width | 2m, 2.1m |
| Roll Length | 75m (for 2m width), 50m (for 2.1m width) |
| Finish Product Size | Custom cut sizes or inventory roll stock |
| Coating Technology | Laminated technology & Hot-melt Coating technology |
| Colour Options | Blue, Red, Yellow, Light blue, Grey (Customized) |
| Flame Retardant | Available in flame retardant grades — confirm the grade required for your market |
| Anti-Static | Anti-static treatment available — request surface resistance test certificate |
| UV Treatment | UV-stable formulation — test basis available on request |
| Key Features | Cold crack resistance, anti-mildew, waterproof, sunproof, high colour fastness, outstanding tearing strength for welding |
| Service Life | 3–7 years under normal circumstances |
| Standards | ISO 14001, ISO 45001, CE, RoHS |
Application Suitability
| Application | Exposure & Requirement |
|---|---|
| Mining and tunnelling ventilation ducts | Continuous airflow flex, underground moisture, fire-retardant compliance for confined spaces |
| Inflatable and membrane structures | Cyclic inflation pressure, UV exposure, structural seam integrity under wind load |
| Aviation ground support covers | Fuel and chemical splash, tarmac abrasion, flame-retardant specification for airside use |
| Industrial air ducting for construction | Dust-laden airflow, temporary installation handling, cold crack resistance at altitude |
| Temporary shelters and site enclosures | Wind-driven rain, repeated erect-and-strike cycles, UV exposure over project duration |
Why Certification Gaps Cost More Than the Fabric Itself
A PVC coated tarpaulin fire retardant claim without a named grade is a liability, not a specification.
Ventilation duct and membrane structure fabric often arrives on site with a generic "flame retardant" label and no test report referencing the standard your safety auditor requires. The result is a failed inspection, work stoppage, and an emergency re-order at premium freight. [NEED_CITE: mining ventilation duct fire compliance requirements by jurisdiction] When the fabric supplier cannot produce a test certificate tied to a specific classification, the contractor absorbs the delay — not the mill.
Heavy duty PVC coated tarpaulin used in aviation or tunnelling environments must carry documentation that maps directly to local regulatory frameworks. We supply test reports naming the grade, the test method, and the issuing laboratory with every certified shipment.
Hot-Melt Coating and Duct Fabrication Performance
Laminated and hot-melt coating technology produces a bond between the PVC layer and the high-strength polyester mesh that withstands the thermal stress of heat welding. This adhesion strength is critical when fabricating ventilation ducts, where longitudinal and circumferential seams carry the full internal pressure of the airflow system. A coating that delaminates at the weld line creates an air leak path and a structural weak point simultaneously.
The hot-melt process also delivers consistent coating weight across the full roll width, meaning the PVC coated tarpaulin fire retardant or anti-static treatment is distributed uniformly rather than concentrated in one zone. For duct fabricators running automated welding equipment, this consistency reduces rejected seam length and keeps production throughput stable.
Anti-Static Treatment for Explosive Atmosphere Compliance
In mining and tunnelling environments where combustible dust or gas accumulation is a constant risk, the ventilation duct fabric must dissipate static charge rather than accumulate it. Anti-static treatment is available on this heavy duty PVC coated tarpaulin — request the measured surface resistance value and the test certificate before specifying it for your project. [NEED_CITE: surface resistivity thresholds for anti-static ventilation duct in underground mining]
Matching the anti-static grade to your site’s explosive atmosphere classification requires coordination between the fabric supplier and your safety engineer. We provide the test data so your team can confirm compliance without a second round of sampling.
Reading the Specification Sheet Beyond GSM
Weight in grams per square metre is the most commonly quoted figure in coated fabric procurement, but it tells only part of the story. A 500gsm PVC coated tarpaulin built on a low-denier base fabric with open weave will tear more easily than a 420gsm fabric woven from high-tenacity polyester yarns at higher thread count. The base fabric construction determines how load distributes across the mesh before the coating carries any stress.
Coating technology further separates two fabrics of identical GSM. Hot-melt coating penetrates the mesh interstices and locks around individual yarns, producing higher peel strength at welded seams. Laminated coating bonds a pre-formed PVC film to the fabric surface, which can offer a smoother finish but may show lower adhesion under cyclic flex. For ventilation ducts that inflate and deflate with fan cycling, peel strength at the seam is often the limiting factor in service life.
Thickness correlates with puncture resistance and stiffness rather than tensile strength directly. A 0.65mm fabric at 750gsm will resist abrasion from rock contact in a tunnelling duct installation better than a 0.32mm at 350gsm, but the thicker fabric also demands larger bend radii during fabrication and heavier handling equipment on site.
What Happens When the Specification Does Not Match the Site
Specifying a PVC coated tarpaulin without confirming the fire-retardant grade against local regulation leads to a binary outcome at inspection: pass or full removal. Underground mining projects in most jurisdictions will not accept duct fabric without a named classification — generic claims do not satisfy the safety auditor. [NEED_CITE: consequences of non-certified ventilation duct in underground mine audit]
Colour inconsistency across rolls in the same shipment becomes visible once membrane structure panels are installed side by side. For temporary aviation shelters or high-profile site enclosures, this triggers a cosmetic rejection even though the fabric is mechanically sound. Batch-level colour control during coating prevents this failure mode entirely.
Welded seams failing before the base fabric is the most expensive defect because it appears only after installation and pressurisation. The duct must be removed, re-fabricated, and reinstalled — tripling the labour cost against the original material saving.
Why Sourcing Ventilation Duct Fabric Here Reduces Project Risk
Three full production lines and 36 sets of professional equipment allow us to run dedicated batches for ventilation duct and membrane structure projects, maintaining coating consistency across the entire order quantity.
A 10-person R&D team handles material selection, custom width, and sample development for specialist applications, producing samples within days so your fabrication team can validate welding parameters before committing to production volume.
Dedicated QA/QC at every production stage with 100% pre-shipment inspection means GSM, colour, and coating adhesion are verified roll by roll — not sampled from a single piece and assumed across the batch.
ISO 14001 and ISO 45001 certification covers our environmental and occupational health management systems, which matters when your project documentation requires supply chain compliance records for audit submission.
Documentation & Verification
- Material specification sheet stating GSM, base fabric denier, coating weight, and adhesion strength for each roll batch
- Fire retardant test report naming the specific grade and test method applicable to your market’s mining or tunnelling regulation
- Anti-static surface resistance measurement with test certificate for explosive atmosphere compliance verification
- Pre-shipment inspection record confirming GSM and thickness against the original quotation values
- Certificate of origin and RoHS compliance statement included in the dispatch documentation package
Fabrication, Handling & Storage
- Heat-weld seams using temperature and dwell settings matched to the hot-melt or laminated coating type — request our welding parameter guide for each GSM grade
- Allow adequate bend radius on 0.5mm and 0.65mm grades to avoid coating crack at folded duct transitions
- Store rolls horizontally on padded cradles to prevent permanent creasing through the polyester mesh core
- Deploy anti-static treated rolls with grounded handling equipment to preserve surface resistivity before installation
- Clean installed duct surfaces with neutral pH detergent only to avoid stripping the anti-mildew and UV treatment layers
Requesting a Quotation That Matches Your Site Requirement
Tell us the ventilation duct diameter, operating pressure, and whether the installation is underground or surface-level so we can recommend the correct GSM and thickness. If your project requires fire-retardant or anti-static certification, specify the regulatory standard your safety auditor will reference at inspection.
Provide the total linear metres needed and whether you require roll stock for your own fabrication shop or pre-cut panels with welded seams. Colour, custom width, and branding requirements should be confirmed at inquiry stage so we can include lead time and sampling in the initial proposal.
Frequently Asked Questions
Q: Which fire retardant grades do you supply and how do they map to my market’s mining or tunnelling regulations?
A: PVC coated tarpaulin fire retardant grades are available — confirm the specific classification your project requires, such as M2, B1 per DIN 4102, or NFPA 701. We supply a test report from an accredited laboratory naming the grade, test method, and result, so your safety auditor can verify compliance at site inspection without additional sampling.
Q: Can you provide anti-static certification with measured surface resistance for explosive atmosphere compliance?
A: Anti-static treatment is available on this PVC coated tarpaulin range. We provide a test certificate stating the measured surface resistance value so your engineering team can confirm it meets the threshold required by your site’s explosive atmosphere classification. Request the certificate during the sampling phase to validate before bulk order commitment.
Q: What GSM and thickness do you recommend for ventilation duct versus inflatable structure applications?
A: Ventilation ducts typically require higher GSM and thickness for puncture resistance and seam integrity under continuous airflow pressure. Inflatable structures prioritise tensile strength and weld peel strength over thickness alone. Share your operating pressure and installation environment so we can recommend the appropriate grade from the 350gsm to 750gsm range.
Q: How do you ensure welded seam strength matches or exceeds the base fabric tear resistance?
A: Hot-melt coating technology penetrates the polyester mesh and bonds around individual yarns, producing high peel strength at heat-welded seams. We verify coating adhesion during in-process QA and can supply seam peel test data with pre-shipment documentation so your fabrication team can confirm welding parameters before full production.
Q: What documentation ships with each roll — test reports, certificate of origin, material spec sheet?
A: Each shipment includes a material specification sheet, pre-shipment inspection record with GSM verification, applicable fire retardant or anti-static test reports, certificate of origin, and RoHS compliance statement. Additional documentation for customs or project audit can be arranged — specify your requirements at the inquiry stage.
